Russ-Turner
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| posted on 17/2/06 at 12:00 PM |
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Track to wheelbase ratio
Just out of curiosity really, can anyone tell me how these parameters are come to? I'm not just takling about on a 7 but in general. Obviously
it is dependant on the vehicle application.
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ned
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| posted on 17/2/06 at 12:13 PM |
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i remember reading somewhere (possibly staniforth's book) that 1.6:1 wheelbase to track ratio is about where you want to aim for, can't
remember why though..
Ned.
beware, I've got yellow skin
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smart51
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| posted on 17/2/06 at 12:19 PM |
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my VortX is about 1.6:1
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iank
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| posted on 17/2/06 at 12:26 PM |
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Yes it's in the "Race and Rally Car Source Book".
Brief section and no conclusion about what works best (a real Lotus 7 is 1.6), but 1.62 'looks best' because of the golden ratio thing.
Values normally lie in 1.4-1.7 range. Smaller can mean a lower polar moment of inertia assuming most of the mass is within the wheelbase (which IIRC
means it tends to turn better, but is less stable in a straight line) 100cc Karts sit at 1.155.
He mentions experimenting by changing wishbone geometry.
Working from home today so can look up such trivia 
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Russ-Turner
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| posted on 18/2/06 at 09:51 AM |
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Ta very much.
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